Angle of View (diagonal): 75° - 8° 15'Lens Construction: 23 elements in 16 groupsNo. of Diaphragm Blades: 8Minimum Aperture: f/22 - 40Closest Focusing Distance (m): 0.7 mMaximum Magnification (X): 0.3xAF Actuator: Ring USMFilter Diameter (mm): 77 mmMax. Length x Diameter: 184 x 92 mmWeight: 1670 g